OrigAudio Jellybox Bluetooth Wireless Speaker - Blackberry (Black) Full stereo sound with Bluetooth functionality. Bluetooth range up to 33 feet. Built in microphone and one touch call answering for phone calls. On-speaker play/pause and change song buttons. Built in TF card slot to store your music in the speaker. Compatible with any device that has Bluetooth connectivity. Also included is a 3.5mm audio cord for devices that don't have the option of Bluetooth. Battery life: 10 hours. Micro USB charging slot (cord included). Speaker power: 3 watts. Size: 4 x 2 x 1.5 inches with a weight of 0.75 lbs. Frequency response: 100HZ-20KHZ. S/N:  60dB.